dmaengine: fsl-edma: tracing: no ptr dereference during log output

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89994
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 11:17:10 UTC
Updated2026-10-19 09:18:46 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: dmaengine: fsl-edma: tracing: no ptr dereference during log output The fsl edma events store a pointer to a struct fsl_edma_engine in the ringbuffer and dereference it when a log entry is printed. At this time, the pointer may no longer be valid. Event injection can be used to trigger a crash: $ cd /sys/kernel/tracing $ echo 'value = 0' > events/fsl_edma/edma_writeb/inject $ cat trace The log output needs only edma->membase. Add a membase field at the end of the event and use the new field for log output. Keep the existing fields for backward compatibility.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 11102d0c343ba06ddd303f2503c0ce46d70052f2 ef02cd3807f39ae1dbc924788d8fa6a85334c435 git Not specified
CNA Linux Linux affected 11102d0c343ba06ddd303f2503c0ce46d70052f2 d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7 git Not specified
CNA Linux Linux affected 11102d0c343ba06ddd303f2503c0ce46d70052f2 2a3801ae5c344473e648006c5b03a9216ac54a6a git Not specified
CNA Linux Linux affected 11102d0c343ba06ddd303f2503c0ce46d70052f2 2ea04dca8e627f722caa7a2037cfbae0257f3501 git Not specified
CNA Linux Linux affected 6.10 Not specified
CNA Linux Linux unaffected 6.10 semver Not specified
CNA Linux Linux unaffected 6.12.110 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.51 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.5 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2a3801ae5c344473e648006c5b03a9216ac54a6a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ef02cd3807f39ae1dbc924788d8fa6a85334c435 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2ea04dca8e627f722caa7a2037cfbae0257f3501 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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